Kenseth held off Dale Earnhardt Jr and Roush Fenway Racing teammate Greg Biffle over a two-lap overtime finish in a race that was scheduled to begin Sunday afternoon but ended in the early morning hours Tuesday.

Rain at Daytona International Speedway first forced NASCAR to push the race to Monday afternoon, then Monday night for the first-ever 500 in primetime television.

Montoya, who said his helmet was singed in the fire and his foot ached, said he felt a vibration in his car before the accident.

"I've hit a lot of things - but a jet dryer?" he said. "It just felt really strange, and as I was talking on the radio, the car just turned right."